Liquid sprayer



April 20, 1954 w. 1.. HAMILTON LIQUID SPRAYER Filed Jan. 9, 1951Patentecl Apr. 20, 1954 LIQUID SPRAYER William L. Hamilton, Bangor,Mich., assignor to W. L. Hamilton & Company, Bangor, Mich a.

eopartnership Application J anuary 9, 1951, Serial N0. 205,127

8 Claims.

This invention relates to improvements in liquid sprayers.

The main objects of this invention are:

First, to provide a sprayer which is weil adapted for use in thesprayiiog of insecticides Which is capable of adjustment to widely varythecharaoter of the spray delivered or to permit the delivery of a solidstream.

Second, to provide a structure having these advantages which is notlikely to become clogged.

'I'hird, toprovide a structure having these advantages which may be veryeasily adjustesl to secure the various ranges of discharge and one inwhich the parts are simple and economical to produce and assemble.

Further objects relating to details and economies of the invention Willappear from the clescription to follow. The invention is defined andpointed out in the claims.

The drawings, of which there is one sheet, illustrate a preferredembodiment of the invention, in which:

Fig. 1 is a fragmentary side elevation oi a sprayer device such as isused in the spraying of insecticides, only one sprayer unit beingillustrated.

Fig. 2 is an enlarged front end elevational view.

Fig. 3 is an enlarged longitudinal sectional view on a linecorresponding to line 3--3 of Fis. 1 and 2, the adjustment beingindicatecl by dotted -lines.

Fig. 4 is a fragmentary longitudinal view with the head member inlongitudinal section, the other parts being shown as viewed from the topof Fig. 3.

Fig. 5 is a face view of the bafile member.

In the accompanying drawing, l represents the supply pipe of a sprayerequipment Which commonly has more than one sprayer unit mounted thereon,but only one being illustrated in the accompanying drawing. Theemoodiment f my invention illustrated comprises the body *or base member2 which is externally threaded to adjustably receive the cylindricalheacl memher 3, the head member having an internally -threaded section 4at its rear end. The lock nut on the base member is provided to secu1ethe head member in its adjusted positions on the base member.

in the embodiment illustrated also serves as a support for the basemember. The nozzle tip 18 15 :emovable so that a t1p having a bore orpassage 9 of the desired diameter may be used. The base member has alongitudinal peripheral slot H3 therein adaptmad to receive the shank l!01" the generally spoon-shaped baffle member I2.

The shank H is pivotally mounted by the pivot pin I3 which is arrangedin a transverse bore M provided in the base member (see Figs. 3 and 4).

The head member is provided with an internal annular rearwarollytapered. rib 15 which con stitutes a supporting abutment ior the bafliemember, the bafifle member being biased or urged radially against theabutment oy means of the ooiled springs 86 seated in the bottom oi theslot lt), the shank of the bafile memoer being provided with a pocket i!for the spring. This retains the spring in position without otherSupp0rt or fastening means.

By reference to Fig. 3, it Will be noted that the abutment la'a isdisposed in substantially forwardly spaced. relation to the tip 8 andsupportingly engages the outer side of the baflie member throughout thefull range of adjustment of the head member. The range of adjustment ofthe head member is such that the baffle mernber may be adjusted to aposition entirely out of the path of the stream discharged. from thedelivery passage which permits the delivery of a substantially solidstream. The baffie may be adjusted to any desired position to beimpinged by the stream so that the character of the spray may be variedfrom the solid stream to the maximum spread and diffusion of the liquiddischarged. In all positions of ao'ljustment the throw of the stream orspray is relatively long.

An important advantage of my structure is that the discharge may begreatly varied from a long distance spray to a Wide driving spray. Thequantity of liquid discharged is not varied by the adjustment. Further,in many spray solutions or mixtures there is a oonsiderable amount 015solids and in many sprayers, these fesult in clogging the sprayer. In mysprayer, there is no clogging as clogging cannot result -from theadjustment of the sprayer for producing sprays of difierent charaoters.

I have illustrated and described my invention in a highly practicalcommercial embocliment thereof. I have not attempted to illustrate o1describe other adaptations or modifications which I contemplate as it isbelieved that this disclosure will enable those skilled in the art toembody o1 adapt my invention as may be clesired. v

Having thus described. my invention, what 1 claim as new and desire tosecure by Letters Patent is:

1. In a sprayer, the combination of a cylindriaal externally threadeclbase member having a longitudinal delivery passage therein, a nozzle tipmember removably threaded into the front end of said passage, said basemember having a longitudinal peripheral slot opening at its iront end, acylindrical head. member threaded upon said base member for adjustmentof the head member longitudinally I" the base member, said base memberbeing provided with a lock nut for said head member, a baflle memberhaving an inner surface concaved transversely and longitudinally of thebafile member and having an outer surface curvecl longitudinally of thebafile member, said bafile member naving a shank pivotally supported insaid slot in said base memb6l, and a spring disposecl in said slotbetween said shank and a radially inwarclly bottom Wall 01" said slotand acting to urge said baflle yieldingly outward, said bafile memberinner surface being disposecl to be impinged by the stream irom saiddelivery passage said head. member having an internal annular rearwardlytaperecl rib extencling entirely around the head member interioriythereof anci continuously supportingly engaging the longitudinallycurved outer surface er" said bafile member through successive completerotations of the head rnember upon the base mernber, whereby theposition of the bafile member relative to the nozzle tip rnernleer maybe acljusted by the screw threaded acljustment of said head memberlongitudinally oi said base mernber.

2. In a sprayer, the combination of a cylindrical externally threadedbase member having a longitudinal delivery passage therein, said basememleer naving a longitudinal peripheral slot opening at its front end,a cylindrical head member threaded upon said base member i'or adjustmentof the head member longitudinally of the base rnember, a baflie memberhaVing an inner surface concaved transversely ancl longitudinally of thebaffle member andhaving an outer surface curvecl longitudinally of thebafile member, said bafile member having a shank pivotally supported insaid slot in said base member, and a spring disposecl in said slot andacting to urge said bafi'le yieidingly outward said bafile member innersurface being disposed to be im'pinged by the stream frorn said deliverypassage, said head member having an internal rio extending entirelyaround the head member interiorly thereof ancl continuously supportinglyengaging the longitudinally curved outer surface o1" said baflle memberthrough successive complete rotations of the head member upon the basemembier, whereby the position of the baflle member relative to thedelivery passage may be acljusteo'. by tne screw threaded adjustrnent ofsaid head member longituclinally of said base member.

3. In a sprayer, the combination of a cylindrical base member having a(zentral longitudinal passage therein, said base member having alongitudinal peripheral slot therein, a head member mountecl upon saidbase member I"or adjustment thereon, a baffie member provided with ashank pivotally supported in said slot in said base member, and a springdisposecl in said slot between said shank and a radially inwarcllybetteln wall o:f said slot and acting to urge said baflle yieldinglyoutward, said head member having an internal rib like abutment spacedfrom said base member in all positions of adjustment of the head memberon said base member and supportingly engaging said bafifle member,whereby the position of the baflle member relative to the nozzle tip:member may be adjusted by the adjustment cf said head member on saidbase member.

4. In a sprayer, the combination of a cylindrical externally threadedbase member having a centra1 longitudinal passage therein, said basemember having a longitudinal peripheral slo-t therein, a head membermounted upon said base member for adjustment of the head memberlongitudinally o;f the base member, a base member being provided With alock nut for said head member, a baffle member provided with a shankpivotally supportecl in said slot in said. base member, and a springdisposed in said slot and acting to urge said baffle yielclinglyoutward, said head member having an internal annular rearwardly taperedrib like abutment extending entirely around the head mernber interiorlythereof andcontinuously supportingly engaging the baiile member againstradial displacernent by said spring through suceessive eompleterotations of the head member upon the base member, whereby the positionof the bafile member relative to the nozzle tip member may be adjusteclby the screw threaded adjustment of said head member longitudinally ofsaid base member.

5. In a sprayer, t7ne combination of a base memher having a longitudinaldelivery passage therein, a head member threadecl upon said base memberfor adjustment oi the head member longitudinally ai the base member, aspring biased baiile mernber mounted on said base member for radialswinging adjustment, said head member having an internal annularabutment member extending entirely around the head member interiorlythereof and continuously supportingly engaging the baffle mernberagainst radial displacement by said spring through successive completerotations of the head member upon the base member, whereby the positionof the baflle mexnber relative to the nozzle tip member may be adljustedby the adjustment 01 said head member longltuziinally of said basemember.

6. In a sprayer, the combination of a base membei having a longitudinaldelivery passage therein, a head member mountecl on said base member foraxial adjustment thereon, means for adjusting the head rnember axiallyof tne base member, a spring biased baflle znember mounted on said basemember for radial swinging adjustrnent, said head member having aninternal abutment ad justable axially with said base member, said bafllernember being spring biased radially outwardly against said abutment,the inner surface. of the baille member being. disposed to be impingeclby the stream from said delivery passage, the outer surface of thebaflle member being engaged by the abutment and being inclined relativeto the direction 05 axial adjustment cf the abutrnent, Whereby theposition of the bafile member relative to the nozzle. tip mernber may beadjusted by the adjustrnent of said head member axially of said basemember.

7 In a sprayer, the combination of a base member having a longitudinaldelivery passage therein, a baflle member mounted on said base membarfor adjustrnent radially relative to said delivery passage analextending in a direction general1y longitudinally of the deliverypassage, and means supported by said base member Tor adjusting saidbaille memberradially ein a Solid 5 stream issuing from said deliverypassage to convert it into a. mist-like form, the inner surface of thebaffle member being disposed 130 be impinged by the stream from said.delivery passage anal being concaved transversely and longitudinally ofthe baffie member to facilitate throw o1" the stream in mist-like form arelatively lang distance.

8. In a sprayer, the combination of a, base memioer having alongitudinal delivery passage, a. cylindrical head member mounted 011said base member and a-djustable relative thereto, seid base memberhaving a longitudinal slot with a radia1ly inwardly bottom Wall, a,radially adjustable bafiie having a shank pivotally disposed in saidslot, and a spring disposed in said slot between said s1ot bottom wal1and said shank and yield- 6 ing1y urging seid. baflie radia11youtwardly, said cylindrical head member having an inwardly projectingabutment member disposed to engage said bzzfile am]. urge the sameradial1y inwardly against tne stress of seid Spring upon adjustment ofsaid head member relative to said base member.

References Cited in the fi1e of this patent UNITED STATES PATENTS NumberName Date 525,507 Neumeyer Sept. 4 1894 614,883 Neumeyer et a1 Nov. 29,1898 617,472 Neumeyer et a1. Jan. 1 99 23 32 Tirrell Feb. 13, 1945

